Human Vibration Analyser

An increase in the number of hand-arm and whole-body injuries caused by vibration is the consequence of the use of modern appliances that are powered by external power sources.

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Hand-tools, machinery, and heavy vehicles cause vibration, the harmfulness of which depends on its intensity and frequency content, and the time of exposure.

Brüel & Kjær's Human Vibration Analyzer Type 4447, a portable system for acquisition, measurement and evaluation of human vibration, is designed to meet the requirements of those who wish to monitor and reduce the exposure of human operators to the harmful influences of such vibration.

It is delivered together with a software package for calculation of vibration exposure to check the action values and limit values against legislatative values.

Features of Human Vibration Analyser:

Compact, stand-alone instrument with an internal power source

Versatile graphics display for control of the instrument and analysis of results

Ideal for field-work, only four buttons for control of functions

All necessary data displayed for instant assessment of exposure to vibration

USB connection to a computer for archiving and post process of the data to calculate vibration doses

The instrument was developed and designed on the basis of inputs from several groups concerned about human vibration: